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May 27, 2010, 05:20 |
implicit / explicit solvers
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#1 |
New Member
Johannes Köpf
Join Date: May 2009
Location: Germany
Posts: 29
Rep Power: 17 |
Hi all,
is there a rule of thumb to determine witch solver (implicit or explicit) is suited better for a given problem? Regards, Johannes |
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May 27, 2010, 09:15 |
solved
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#2 |
New Member
Johannes Köpf
Join Date: May 2009
Location: Germany
Posts: 29
Rep Power: 17 |
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May 29, 2010, 04:35 |
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#3 |
Member
Join Date: Jan 2010
Posts: 39
Rep Power: 16 |
I think the default (explicit) is preferred/recommended for reasons of accuracy.
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March 4, 2017, 11:18 |
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#4 |
Senior Member
Hydreaulic structures
Join Date: Sep 2012
Posts: 283
Rep Power: 15 |
Hi Dear friends;
whether using implicit solvers for viscous stress & free surface pressure & advection could be good idea to calculate the sediment scour phonomena in order to reduce the computational time Or it's not recommended? i appreciate for any comment that could be useful for me. best regards hamid |
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March 6, 2017, 12:04 |
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#5 |
New Member
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In the text output in the simulation manager tab, you can get information from the stability code on what is limiting the timestep. Look up the meaning of each code in the user manual. Once you determine which model is limiting the timestep, you can then change this to implicit to try and speed up the simulation.
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March 10, 2017, 15:32 |
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#6 |
Senior Member
Hydreaulic structures
Join Date: Sep 2012
Posts: 283
Rep Power: 15 |
Dear Brian, thanks for your response.
with the best wishes for you hamid |
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